wehub-resource-sync
44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <cstddef>
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#include <vector>
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#include "paddle/utils/test_macros.h"
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namespace phi {
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using LegacyLoD = std::vector<std::vector<std::size_t>>;
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/*
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* Transform an LegacyLoD from relative offsets to absolute offsets.
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*/
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LegacyLoD ToAbsOffset(const LegacyLoD& in);
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TEST_API void AppendLegacyLoD(LegacyLoD* lod, const LegacyLoD& lod_length);
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/*
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* Convert between length-based LegacyLoD and offset-based LegacyLoD.
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* The implementation of DenseTensor class use offset-based LegacyLoD.
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* However, we want to expose the more user-friendly length-based
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* LegacyLoD to the Python side instead.
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*
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* Example:
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* If offset_lod = [[0, 2, 3],[0, 3, 5, 9]]
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* then length_lod = [[2, 1], [3, 2, 4]]
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*/
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TEST_API LegacyLoD ConvertToLengthBasedLegacyLoD(const LegacyLoD& offset_lod);
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} // namespace phi
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